Take a deep breath!

We are starting a two week unit on the respiratory system. Today we brainstormed what we know, think we know and want to know about the respiratory system. We also compared the lung capacity of two students and started our first engineering challenge of the year.

Tomorrow you will build a model of a lung. You can certainly do research before coming to class to learn more about how the lungs work.You will have rubber bands, tape, plastic bottles, straws, balloons, plastic bags, modeling clay and paper to make your model. You can not breathe into the model to inflate the lungs.

Observations, Patterns, Explanations

Today we recapped what we have learned so far on the circulatory system in an "Observations, Patterns, Explanations" table. This is a new feature of your notebooks and will be something that we continue to build on over the course of the year.

Homework: You will need to rewrite your lab report. This is due on Monday. In the introduction you also need to take 1-2 sentences to compare the number of chambers in a heart for mammals, amphibians and fish.

Heart Dissection

Today we had "the coolest science class ever!" Students dissected cow hearts and used dissecting microscopes to take a closer look at parts of the heart. Click the picture below to link to all of the pictures.

Homework: finish your observation tables from today.

Cow Heart Dissection Prelab

Today in class we took a few more notes on the heart and compared fish circulatory systems to human circulatory systems.

Tomorrow we will be doing a how heart dissection. Watch the video below to have an idea of what you are in for.

Notes on the heart & your lab write up

Today in class students took some notes on heart beats, the importance of valves in the circulatory systems and causes of heart attacks.

To listen to a regular heart beat, click here.
To listen to an irregular heart beat, click here.

Homework:
On Monday you have a lab report due. Instead of having all of the sections, you only need to include the following information.

Click through the slide show below to see what is required for this lab report.

Heart rate lab report

View more presentations from ilanasaxe.

The data you need is below, it has also been emailed to you in an Excel file. Click on the picture below to make it larger. Your data table should include the average resting heart rate and average jumping heart rate for each person.

Heart Rate Lab - Data Collection

Today we collected data on how stimuli affects our heart rate. The stimuli we tested were dancing, running and jumping.

Homework:
Your Choice! You may either read and take notes on pages 101 & 102 or watch the animation we watched in class and take notes from that.

You will have a short reading quiz on this material on Friday.

The Plan from Jan 19-28

Click on the picture below to see our plan from now until Jan 28. Remember: this is subject to change!

Heart Rate Lab Intro

Today we started the heart rate lab. Students learned some basic information on the flow of blood through the heart and practiced taking their pulse.

Homework:
Finish writing the procedure for the experiment. In class we wrote the procedure for the dancing test (see it below). You need to write the procedures for tests 2 and three (running and jumping).

NOTE: change the activity and recovery times to one minute, instead of two minutes.

Test 1: Dancing procedure
Students sat quietly for 2 minutes before taking their resting pulse. The pulse was taken for 30 seconds, multiplied by 2 and entered into the data table. Students danced for one minute. At the end of one minute, their pulse was taken for 30 seconds, multiplied by two and entered into the data table. The procedure was repeated two more times, for a total of three trials.

Welcome Back!

From now until Academic Travel we will be focusing on the following two objectives:

Students will be able to identify the general functions of the major systems of the body and describe ways that these systems interact with each other.

Students will be able to describe the hierarchical organization of multicellular organisms from cells to tissues to organs to organ systems.

We are starting our anatomy unit with the circulatory system. Tonight for homework read page 98 and answer the questions at the bottom of the page. You do not need to write the question, just the answer. Write you answer using complete sentences.